How can I set my include files in clang with c++? - c++17

Question

[platform] MacOS M1 Max with llvm installed by homebrew
Homebrew clang version 13.0.1.
Target: arm64-apple-darwin21.4.0.
Thread model: posix.
InstalledDir: /opt/homebrew/opt/llvm/bin
xcode-select version 2395.
I do like this:
inline Action * getAction(const string& path)
{
llvm::LLVMContext *llvmcx;
static llvm::LLVMContext MyGlobalContext;
llvmcx = &MyGlobalContext;
string inputPath = path;
vector<const char *> args;
args.push_back(inputPath.c_str());
llvm::IntrusiveRefCntPtr<clang::DiagnosticOptions> opt(new clang::DiagnosticOptions());
clang::DiagnosticConsumer *client(new DiagnosticConsumer());
llvm::IntrusiveRefCntPtr<clang::DiagnosticIDs> DiagID(new clang::DiagnosticIDs());
clang::DiagnosticsEngine * Diags = new DiagnosticsEngine(DiagID, opt, client);
// Create the compiler invocation
shared_ptr<clang::CompilerInvocation> CI(new clang::CompilerInvocation());
clang::CompilerInvocation::CreateFromArgs(*CI, args,*Diags);
clang::LangOptions * langOptions = new LangOptions();
langOptions->LangStd = LangStandard::Kind::lang_cxx17;
clang::FileSystemOptions * fileSystemOptions = new FileSystemOptions();
clang::FileManager * fileManager = new FileManager(*fileSystemOptions);
clang::SourceManager * sourceManager = new SourceManager(*Diags,*fileManager);
shared_ptr<HeaderSearchOptions> headerSearchOptions(new clang::HeaderSearchOptions());
headerSearchOptions->ResourceDir = "/opt/homebrew/opt/llvm";
headerSearchOptions->AddPath("/opt/homebrew/opt/llvm/bin/../include/c++/v1", frontend::Angled, false, false);
auto targetOptions = make_shared<clang::TargetOptions>();
targetOptions->Triple = llvm::sys::getDefaultTargetTriple();
clang::TargetInfo * targetInfo = clang::TargetInfo::CreateTargetInfo(
*Diags,
targetOptions
);
clang::HeaderSearch headerSearch(
headerSearchOptions,
*sourceManager,
*Diags,
*langOptions,
targetInfo
);
CI->HeaderSearchOpts = headerSearchOptions;
clang::CompilerInstance Clang;
Clang.setInvocation(CI);
Clang.setDiagnostics(Diags);
Clang.setTarget(targetInfo);
Clang.setSourceManager(sourceManager);
Clang.createPreprocessor(clang::TU_Complete);
Clang.getDiagnostics().setClient(new TextDiagnosticPrinter(llvm::errs(), opt.get()));
if (!Clang.hasDiagnostics())
return NULL;
Action *Act = new Action();
if (!Clang.ExecuteAction(*Act))
{
llvm::outs() << Clang.getFrontendOpts().StatsFile;
Clang.getDiagnostics().getClient()->finish();
return NULL;
}
return Act;
}
The parsed file have some includes:
#include<iostream>
#include<vector>
...(some self-defined headers)
but it shows:
In file included from /Users/sl/projs/C++_proj/clion/GAMES101/pa6/Ray.hpp:7:
In file included from /Users/sl/projs/C++_proj/clion/GAMES101/pa6/Vector.hpp:8:
In file included from /opt/homebrew/opt/llvm/bin/../include/c++/v1/iostream:36:
/opt/homebrew/opt/llvm/bin/../include/c++/v1/__config:1151:46: fatal error: cannot open file '/opt/homebrew/opt/llvm/bin/../include/c++/v1/pthread.h': No such file or directory
(defined(__MINGW32__) && __has_include(<pthread.h>))
^
1 error generated.
I've tried to add more different header file to "HearderSearchOptions",but it didn't work,it threw some include error different.
I think it's most likely due to the incorrect setting of headersearchoptions,but I'm not so sure.
How to solve it? :-(